Typewriting machine



A ril 2, 1929. I g. w. RENZ 1,707,370

- K I TYPEWRITING MACHINE Filed Dec. 5, 1927 2 sheets-sheet l April 2, 29- G. w. RENZ 1,707,370

Patented Apr. 2, 1 929.

a f I 1,707,370

v T-ED STATES "GEOR E w. BENZ, 0F nnwYoRK, ii. Y.,-AssIG1\ oR mojvmmwoon ELLIOTT FISHER con ranxor NEW Yonx, ,N.QY.,

a CORPORATION": on D LAWARE,

- ,TYrEWRIT NG MACHINE.

Application filed Decemberl a lower Web is to be written upon, .thelea d-g ing end of the upper web with its interleaved carbons is folded backvvardlyf over the carbon-carrier at the rear of the ,mas. chineandis kept n; ldleness- To render this upper web active upon-the platen, the leading end of the lowerweb 1n turnhas to be disposed of by threading. the same backwardly between said superposed sets of earbon carriers, which threading Older 34f t1on'1s usually-tedious and pa nstaking to.

the unskilled operator.

, According to theginvent'ion', .the upper unit of carbon-carriers 1s hinged at the rear upon the lowerunit and with quick throw may be. swung; up and backwardly beyond its vertical position to be held by a suitable stop. This affords ample space for convenient-and quick handling of the lower Web. 7 The upper carrier then may be restored to position the upper web for Writing. In conjunction with this expedient, the invention provides means to prevent the carbon-holding blades upon the upper carrier from ;falling off the carrier when the same is swung back in its extreme rearward position, one in front of theother, upon -step's de scending towards the platen, and are. fastened'for quick detachment at one end by plain pin-and-hole connections, and, furthermore, at the attached end provided; witli'i a fi'ngenpiece tohandle the], same. Prefer;

ably, a flat memberis pivoted upon the ca'rrier and normally set transversely of ;the' blades, so as to closely cover thefinger-pieces to hold the blades down-and in-place upon the carrier. Said fiat member may beswungdetachment of thevbladesh out of thewav to free the finger-pieces for The blades are arranged 3,1 27. seriaino; 237,363. i

r I Otherteatures andzadvantages will hereinafter appear. a a a In the accompanying drawings, 7 Figure 1 is a: sectional side elevation of a platen and platen-frame of a standard Underwood manifolding typewrit'ing ma chineshowing the relation/between the double carbon-carrier and the platen,,a

lower group of worksheets beingjin use i the upper web beingindicated in dot and 'dash'.'- I

back to idle position, the-intended action of Figure 3 -is a detached perspective of the? two hingedly interconnected and superposed carboircarriers, and showing details of bla curing members; a V

, Figure; 4- isa partial top View upon the upper carbon-carrier, showing the pivoted blade-securing; Q-member; swung vsidewardly to ineffective position for detaching the'car-V 1 Figure 5 a detail perspective view w ith de-arrangeme nt, and the" novelblade-separts drawn apartand disclosing means for. I ,1

' mounting said blade-securingmember upon the carbon-carrier.

Figure lot the drawings illustrates the feeding of a multiple-plyweb 10 on a stand-- ard Underwood continuous billing typewriting machine, and in addition shows an other superposed web 11 idllngupon the ma chine butready for use, 1. e,, for substitution ,in place of the (first-mentioned Web;

The drawings show a Web-feeding platen -12Qhaving a platen=shaft 12 ,and displace ably journaled upon aplaten-frame, Which is substantially composed ofside plates 13 7 connected a; usual paper-guide 14; extending at the rear. of, the platen and, down:

around the platen. ,Theplaten-frame travels transversely of the -maehineuin letter-feed and return movement,- and has a rearward extension 15 to serve as a track for the Wells;

known carboncarriage 16.; More in detail said tracker frame includes a longitudinal rodor member 17 at either side and afront and. a rearv oros'smember' 18 and-18 said] frame at its forward end being hinged to the. paper-guide by means of br wket-plates 19,

which in turn are rigidly fastened to said paper-guide by means of clips 20. The rear end of the frame by means of rollers (not shown) has contact with a supporting rail transversely mounted upon the machine frame (not shown). 'The multiple ply web 10 in Figure 1 is led from underneath the machine upwardly over a guide-bar 21 carried in standards 22 at the rear end of the track, said guide-bar having usual settable gages 23 to laterally guide the paper, which then is conducted along the track to be passed over said aforementioned carboncarriage 16 tobe interleaved with carbons 1; and thus be led around the lower part ofthe platen. The composite web is advanced around the platen with the aid of usual pressure-feed-rolls, indicated in dot and dash at 24, and is passed across the typ ing line indicated by a front-striking typebar 25 to be delivered onto a collating table 25 which carries attached thereto a usual settable leading edge gage 26. As the paper is advanced, the carbon-carriage through the attached carbonsheets is drawn forwardly until the writing of a certain section of the web is completed! In order to prepare a new section of the web for writing, the platen may be displaced in upward direction so as to allow the web to be straigl'ltened out and the carbons under the control. oi? said carbon-carriage to be redrawn between and relatively to the plies, which movement may be readily effected by pushing rearwardly the well-known handle 27 (indicated in dot and-dash) of said carbon-carriage. Forupward displacement the. platenshaft has its bearings at either side at the end of rocking arms 28, which, in turn, bymeans of a rod or axle29, are mounted for movement in a vertical plane upon the platen-frame. VVit-h the leading edge of the web abutting the gage 26 and the carbon-carriage duly retract-ed, the platen may be restored to working position and the written part of the web in the usual way may be severed from the pack by tearing the same across the sharp edge of a severing blade 30 which, located slightly above the typing line, is swingable as a unit with the platen. v The carbon carriage 16 is of well-known standard con struction and is substantially composed of a truck including a bed-plate 31 upon which are provided grooved rollers 32 to co-operate with flat railmembers 33, which are supported upon said longitudinal rods 17 to formthe track-elements for the carbonhowever, detaehab-ly secured thereon a separate structure 33, including a base-plate 34 upon which is fixed at either side a block 35 locate the blade upon the carrier.

formed with steps 86'descending towards the platen and which presentv the supporting faces for carbon blades or holders 36 proper. As may be seen from Figures 3 and 4, there are provided in each step two holes 37' to receive two corresponding pins provided at one end of a corbon-blade so as to rigidly A lingerpiece 38 is provided upon each carbon-blade to handle the same.

(see l igure 1) include a pin 39 at either side depending from the base-plate and passin through holes provided in the truck bee.- plate, and latches 40, each of which is mounted upon the lower side ofsaid truck bedplate and which may engage ina kert or slot provided in said pin 39. Said latch includes a flat body-member which is'pivoted 7 upon said bed-plate by screw 42 and has a depending linger-piece 43 by which it may be swung sidewardly to release said slotted pin 39 and to' allow said blade supporting structure, as a whole to be lifted oil the truck. Two holes 43 provided at one side of the base-plate 34 and screws 4A serve to fasten said carbon-carriage handle 27 upon saidbase-plate. V i

The following part of the description is substantially concerned with attachments and additions to the standard equipment which allow the convenient use of two interchangeable work-webs upon the carbon can ria'ge as mentioned above. To this end, there is provided a second carbon-bladecarrier 44 substantially a duplicate of the one described above. The structure which supports the lower blades 36 and the second carbon-blade carrier id are superposed upon each other and hinge'dly interconnected at the rear so that the upper carrier may be swung backwardly, as illustrated in Fig ure 2. Said upper carrier, in particular, is formed with a stepped block at either side, both blocks being interconnected by fiat bar-members 46 to form a rigid unit and Means to locate and se-; cure the detachable structure upon the truck carrying carbon-blades as described above;

Due to hinges at? screwedat 48 and at 4:9 to the lower and upper carriers respectively, the upper carrier may be thrown "from lFigure 1 toFigureQ position, which latter position is determined through the action of a link 50, which, at one'end, 1s pivoted-upon block of said structure 33 byscrew 51,

and, at the other end, has slot and-scrcw connection 52 wlth the upper carrier.

the lower web from the'platen, and for folding the same back between the, upper and the lower set of carbon-blades to keep it out of the way when the upper carbonblade carrier Me is restored for inserting V the leading edges "of the upper web under the platen and for a quick change from one Fur thermore, regarding F1gure 2, 1t will be seen that ample spareis offered for withdrawing to laterally 'guidethe paper. Additional tably arranged upon-the lower -as well as web to-the other. In order to'keep the backwardly overhanging ends of each web from mterfermg with each other, 'there is providcd a usual second-guide-bar 58 parallel toandback of the one: mentioned above to individually supportfth'e upperweb at the carbon-carriage" track, said guide-bar 53 also being provided wlthsettable gages 55 side gages of known construction are setthe upper carbon-carrier at the rear thereof and may be clearly seen from Figure 3,.eachone including slotted gage-member 56 the same in place.

fastened to the carrier by thumb-screw 57.

A preferred construction provides means to prevent the blades of the upper carrier from falling off when the carrier, in its Figure 2 position, is turned upwardly and backwardly beyond the vertical line, said means including a flat member or blade 58 at either side, which is pivoted upon the upper-- most step of said upper carrier by screw 59, and which is formed to closely cover the fingenpieces 88 of the carbon-blades 36* when set transversely of the blades to hold Figure 3 shows this blade-securing member as being swung sidewardly to free the finger-pieces for bladedetachment, while, in conjunction therewith, a detail in Figure 5 shows a spring-washer 60 effective to frictionallyhold said bladesecuring member in any desired position.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus deseribedmy invention, I claim: r p

1. In a continuous-billing typewriting machine having a revoluble platen journaled in a platen-frame, to alternately feed one of two superposed multiple-ply-webs, while the other one is, idling upon the machine, the web-plies being interleaved with carbons to be shifted periodically between the plies for use in consecutive sections thereof, a reciprocating carriage back of the platen and mounted upon an extension of the platenframe for traveling movement in the line of web-feed, a set or unit of blade-like holders mounted upon steps of said carriage and edgewise adjacent to each other, each of said blades controll ngthe rear end of a carbon to periodically shift the same between the, plies of the lower of the work-webs, a unit of carbon-blades to accommodate the upper worlnweb, substantially as a duplicate superposed upon the first-mentioned unit and hinged thereto at therear so as to enable the upper unit to be swung out of the way rearwardly to facilitate handling and mounting of the lower web when the upper web is idle,

and means to determine extreme tilting tIOIlSgOf the upper unit.

'2. In a continuous-billing typewriting mas chine having a revolublepla'tenjournaled in a platen-frame, to alternately feed one of two superposed. multiple ply-webs,I while the other one is idlingupon themachine, the web-plies beinginterleaved with carbons to be shifted periodicallybetween the plies for use in consecutive sections thereof, the combination of, carbon-controlling means, said means including aset of holding blades carrying the rear ends ofthecarbons for the 3 lower web, saidblades by meansof pin-andhole connections mounted upon steps which form a lower blade-carrier reciprocatively movable in the line of paper-feed upon a rearward extension of the platen-frame, an upper blade-carrier substantially a duplicate of the lower one, to accommodate the upper multiple-ply-web, said upper carrier at the rear end hinged to the lower one and swingable rearwardly beyond the vertical when the web thereon is idle, s0 as to facilitate handling and mounting-of the lower web,

settable means to hold the blades seatedf upon the upper carrier when the same is turned over to rearward position, and means to de-' termine the forward and rearward position of said upper carrier.

3. In a continuous-billingtypewriting machine having a revoluble platen journaled in a platen-frame, to alternately feed one of two superposed multiple-ply-webs, while the other one is idling upon the machine, the

web-plies being interleaved withv carbons to be shifted periodically between the plies for use in consecutive sectionsthereof, the com bination'of carbon-controlling means, said means including a set of holding blades car rying the rear ends of the carbons for the lower web, said blades by means of pin-andhole connections mounted upon steps which form a lower blade-carrier reciprocatively movable in the line of paper-feed upon a rearward extension of the platen-frame, an uppei-"blade-carrier substantially a duplicateof the lower one, to accommodate the upper multiple-ply-web, said upper carrier at the rear end hinged to the lower one and swingable rearwardly beyond the vertical when the web thereon .is idle, so as to facili-' tate handling and mounting of the lower web, settable hold-down members to secure the, blades in place uponthe upper carrier when the latter is turned over to rearward position, said members extending transversely of the blades to'hold down the fixed ends thereof, and means to determine-the forward and rearward position of the upper carrier. 4- In a continuous-billing typewriting machine having a revoluble platen journaled in a platenframe, to alternately feed one of two superposed multiple-ply-webs, while the other one is idling. upon the machine, the

Web-plies being interleaved with carbons to be shifted periodically between the plies for use in consecutive sections thereof, the combination of carbon-controlling means, said per blade-carrier substantially a duplicate ofthe lower one, to accommodate the upper momma multiple-ply-web, said upper carrier at the rear end hinged to the lower one and swing able rearwardly' beyond the vertical when the Web thereon is idle, so as to facilitate handling and mountingof the lower web, a fiat member settably mounted uponthe upper carrierto hold the blades thereon in place when the carrier is turned over to rear-,

ward position, said flat member normally:

extending across the fixed ends of said carhon-blades: but swingable to free the same,

and means to determine the forward and rearward position of the upper carrier.

' GEORGE W. BENZ 1 

